Type-writing machine.



Paten ted Dec. l0, |90|L C. P. MDSHEH. TYPE WRITING MACHINE.

(Application filed Feb. 9, 1901.)

INVENTURQ WTNEEEEi HE TTDRNEY UNITED STATES PATENT OFFICE.

CHARLES P. MOSHER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGN OR TO THE SMITH PREMIER TYPEWRITER COMPANY, OF SYRACUSE, NEW' YORK,

A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

$PECIFICATION forming part of Letters Patent No. 688,744, dated December 10, 1901. Application filed February 9, 1901- Serial No. 46,634 (N mfl h To all whom it may concern.-

Be it known that 1, CHARLES 1?. MosHER, a citizen of the United States, and a resident of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Type- Writing Machines, of which the following is a specification.

This application relates to the type-bars i0 and type-bar bearings of writing-machines.

The objects of my invention are to pivot a large number of type-bars in a very small compass, to rigidly support the type-bars against lateral vibration, and to enable them to swing I5 freely upon their pivotal supports or bearings.

To these ends my invention consists in certain combinations of devices, features of construction, and arrangements of parts, all as 26 will be fully hereinafter set forth, and particularly pointed out in the concluding claims.

In the accompanying drawings, Figure 1 is a front elevation of a portion of afront-strike Writing-machine, showing a type-bar segment 2 5 and a type-bar pivoted thereon. Fig. 2 is a side View of a mounted type-bar, the segment being shown in cross-section. Fig. 3 is an edge view of a detached type-bar. Fig. 4 is a sectional side View of the segment. Fig. 5

shows the preferred form of folded type-bar.

In the several views similar parts are designated by similar numerals of reference.

Each type-bar comprises both a shank or blade portion 1, which carries a type 2, and

also an enlarged thin hub portion 3, in which is formed an eye 4 of enlarged diameter. Within the eye is formed an annular V- groove 5, which affords a bearing fora series of antifriction-balls 6. The hub is slit lon- 4o gitudinally or divided edgewise at 7, the slit preferably extending a short distance into the blade of the type-bar. The opposite halves of the hub may be adj ustably secured or drawn together by transverse screws 8, 5 one preferably located at the union of the hub with the blade 1 and the other diametrically opposite thereto. Upon the hub is provided a perforated ear 9, to which is at. tached the usual rod 9, which is connected with the usual key-lever.

Upon an arc-shaped bar or segment of an anchor-ring 10 I cut a series of V-grooves 11, corresponding to the internal 'V--grooves 5, formed in the type-bar hubs. These grooves 11 are out upon the periphery of the segment and extend in radial directions from the common printing-center, which is designated as 12. A cross-section of the segment is shown at Fig. 2, from which it will be seen that the outside diameter of the segment is justalittle less than the diameter of the eye in the typebar hub, so that the type-bars may be strung side by side upon the segment, the balls being inserted in the raceway formed by the cooperating grooves 5 and 11 and the screws 8 then tightened sufficientlyto draw together the two halves of the type-bar hub, so as to cause the balls to fit snugly in their bearings, whereby the type-bar is firmly held against lateral vibration and is also enabled to swing freely. It will be seen that the lateral steadiness of the type-bar is secured by reason of the large diameter of the raceway in which the balls run, and at the same time, owing to the thinness of the type-bar and the absence of any necessity for the usual laterally-arranged hanger or bracket, a great many bars can be arranged in a small compass, which is a desideratum in this class of machines, more especially in front-strike machines, wherein the type-bars must be arranged within' less than half of a circle. It will be seen that not only the type-bars at the center of the ma chine,which vibrate in nearly-vertical planes, but also those at the sides of the system, where they vibrate in oblique planes, are firmly supported without liability of lateral vibration, while they may swing freely.

The ends of the segment are fastened by screws 13 in brackets let, the latter being se- 0 cured by screws 15 to the framework of the machine. Owing to its large cross-section 01' diameter the segment is rigid, so that it cannot spring while a type-bar is in motion.

The type-bar may, if desired, be made of sheet metal and folded longitudinally, so as to bring the two halves of the hub opposite each other, a socket provided for the type, and an internal V-groove 5, formed in the eye in the hub. In this construction, ll0WOV6l?,tl16 blade extends in a tangential direction, as at Fig. 5,

so as to afford room on the blank for the opposite sections of the hub. The segment may be made of hollow or of tubular form and otherwise supported. The parts of the typebar huh may be otherwise drawn together \vithout'departing from the spirit of my invention. l

It is not essential in the broadest aspect of my invention that the hub be split and drawn together.

Other changes may be made in details of construction and arrangement within the scope of the invention. Parts of my improvement may be used without others, and it will be understood that the same may also be employed in an under-strike or in a top-strike machine.

What I claim as new, and desire to'secure by Letters Patent, is-

1. A type-bar having an enlarged hub divided edgewise as at 7, an eye in the hub, and

a V-groove formed interiorly in the eye.

2. A type-bar having an enlarged hub di vided edgewise as at 7, an eye in the'hub, a V-groove formed interiorly in the eye, and a transverse connection for the two parts of the hub.

. y 3. A type-bar having an enlarged hub divided edgewise as at 7, an eye in the hub, a

V-groove formed interiorly in the eye, and a screw for adj ustably connecting the two parts of the hub. I

t 4. A type-bar having an enlarged hub divided edgewise as at 7, an eye in the hub, a V-groove formed interiorly in the eye, and a pair of diametrically opposite screws for drawing the two halves of the hub together.

5. A type-bar having an enlarged hub divided edgewise as at 7, an eye in the hub, a V-groove formed interiorly in the eye, a pair of diametrically opposite screws for drawing type-bars for balls, a series of balls arranged in said bearings and means for preventing lateral, displacement of said bars along said segment. v

8. In a type-writing machine, the combination with a platen, of a segment, a series of type bars having eyes whereby they are strung upon said segment, bearings in said type-bars for balls, a series of balls arranged in said bearings, and corresponding bearings in said segment.

9. In a type-writing machine, the combination with a platen, of a segment having formed thereon a series of external annular V-grooves radiating from a common, center, a series of type-bars whose hubs are provided with interior grooves, and balls interposed between the type-bars and the segment,said balls work ing in both the type-bar and segment grooves.

10. In a type-writing machine, as a support for a series of type-bars, a segment of an anchor-ring having formed thereon a radiating series of external annular -grooves.

11. In a type-writing machine, as a support for a series of type-bars, a segment of an an chor-ring having formed thereon a radiating series of external annular V grooves, and

means for supporting said segment at its ends upon the framework of the machine.

12. In a type-writing machine, the combination with a platen, of a plurality of type-- bars arranged upon a common arc-shaped bar, and a plurality of sets of bearing-balls interposed between the type=bars and the said common bar.

13. In a type-writing machine,- the combination with a platen, of a plurality of type bars, a common support or bar therefor, said type-bars having bearings for balls, and said common support having a series of corre sponding bearings for balls, and balls ar= ranged in said bearings.

14. In a type-writing machine, the combination with a platen, of a series of type-bars each having an interiorly-V-grooved eye,- a common :curved bar for said type bars having radially-extending external annular V- grooves, and balls interposed between said type-bars and said curved barand working in the raceways formed by the cooperation of said internal and external V-grooves.

1 5. In a type-writing machine, the combi nation with a platen, of a series of type-bars each having an interiorly-V-grooved eye, a common curved bar for said type-bars hav ing radially-extending external annular V- grooves, balls interposed between said type bars and said curved bar, and working in the raceways formed by the cooperation of said internal and external V-grooves, said type= bars having divided hubs, and means for drawing together the parts of the hubs.

16. In a type-writing machine, the combi= nation with a platen, of a series of type-bars each having an interiorly-V-grooved eye, a common curved bar for said type-bars having radially-extending external annular V- grooves, balls interposed in the raceways formed by the cooperation of said internal and external V-grooves, the hubs of the typebarsbeing divided edgewise, and a screw or screws for drawing together the divisions of the hubs.

17. In a type-writing machine, the combination with a platen, of a series of type-bars having interior annular V-grooves, a common curved bar for said type-bars, said curved bar having exterior annular V-grooves, balls arranged in said grooves, and means for adjusting the bearings of the balls.

18. In a type-writing machine, the combination with a platen, of a series of type-bars having ball-bearings in the form of internal annular V- grooves, a common bar for said type-bars, said bar having external annular V-grooves, balls working in said grooves, and means upon the type-bar for adjusting the bearings of the balls.

19. A type-bar formed of sheet metal and folded longitudinally, the opposite hub portions being of large diameter and having enlarged perforations, said perforations having beveled edges, so as to form an interior V- groove in the eye of the hub.

20. A type-bar formed of sheet metal and folded longitudinally, the opposite hub portions being of large diameter and having enlarged perforations, said perforations having beveled edges, so as to form an interior V- groove in the eye of the hub, and the said hub portions being slightly separated and provided with means for drawing them together.

21. In a type-writing machine, the combination with a platen, of a series of type-bars arranged radially of the printing-center, and a curved bar upon which said type-bars are hung, said curved bar being supported at its ends and passing through the hubs of the type-bars, and also having means formed thereon for preventing lateral displacement of the type-bars.

Signed at the borough of Manhattan, in the city of New York, in the, county of New York and State of New York, this 7th day of February, A. D. 1901.

CHARLES P. MOSHER Witnesses:

K. V. DONOVAN, E. M. WELLS. 

